Unfunded Mandates Accountability and Transparency Act of 2025

HR 580 amends the 1995 Unfunded Mandates Reform Act to strengthen requirements for federal agencies issuing significant regulations. It requires agencies to conduct detailed cost-benefit analyses for "major rules" (those costing $100 million annually or more) before finalizing them, including assessing impacts on state/local governments and small businesses. The bill mandates agencies to consult with affected state/local officials and private sector stakeholders early in the rulemaking process and select the regulatory alternative that maximizes net benefits. These changes directly affect federal agencies, state/local governments, and businesses, particularly small enterprises, by increasing transparency and accountability for major federal regulations.